Abstract
ABSTRACT Studies of extracted teeth have shown that teeth exhibiting dentin hypersensitivity have larger numbers of widened dentinal tubules at the dentin surface compared to nonsensitive teeth. Various methods and materials used in the treatment of dentin hypersensitivity are thought to achieve therapeutic benefit by tubule occlusion. However, the effectiveness of semiconductor laser therapy in the reduction of dentin hypersensitivity without tubules occlusion has been reported. The purposes of this investigation were (1) to evaluate the combined effectiveness of semiconductor laser with Duraphat, and (2) to compare the prolonged effectiveness of semiconductor laser with Duraphat and semiconductor laser in the treatment of dentin hypersensitivity. Thirty subjects participated in the randomized, double-blind study, and were followed up for 3 months. Two sites were treated on each patient. One received semiconductor laser treatment and the other received semiconductor laser + Duraphat treatment. Laser trea...
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